↑

The Magical Slow Cooker

Slow Cooker Recipes

  • 🎄Christmas Recipes
  • Recipe Box
  • Buy My Digital Cookbook
  • About me
  • Contact Me
  • Free Newsletter
    • Visit us on Pinterest
    • Visit us on Instagram
    • Visit us on Youtube
    • Visit us on Facebook
    • Visit us on Twitter

The Magical Slow Cooker » Recipes » Dessert » Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}

Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}

by Sarah Olson on June 30, 2022 | Updated October 29, 2023 73 Comments

115628 shares
  • 28084
Jump to Recipe Jump to Video Print Recipe
reese's peanut butter cake images with text of ingredients.
long image of peanut butter cake for Pinterest.
collage of peanut butter cake images with text for pinterest.

Make a decadent Slow Cooker Reese’s Peanut Butter Cake for your family. It has warm chocolate cake and melty peanut butter frosting and is topped with Reese’s peanut butter cups.

If you love warm dessert cuisine, skip using the cake pan and the oven for your crockpot. It is the perfect way to go. We also make blackberry cobbler and lava cake in our crockpot!

chocolate cake with peanut butter frosting with reeses on top.

Can I make cake in a crockpot?

  • You can make cake in the crockpot! It’s a perfect environment to create a warm cake you spoon out instead of slicing. Be sure to watch the timing for a crockpot cake can burn easily.
  • This moist chocolate cake cooked in the slow cooker is perfect for family get-togethers, BBQs, birthday parties, or even a church potluck.

Ingredients

ingredients for reese's peanut butter cake on a table.
  • Devil’s food cake mix – You can use any chocolate cake mix you like. We also use chocolate cake in our slow cooker s’mores cake recipe.
  • Wet ingredients for cake – Eggs, melted butter (I use melted butter instead of oil), and water
  • Warm glaze – Melted peanut butter and powdered sugar make the best topping for this chocolate cake.
  • Reese’s Peanut Butter Cups – Mini peanut butter cups go inside the batter and halved bite-size Reese’s go on top for garnish.

Step-by-Step Directions

How to make batter for peanut butter chocolate cake.

Step One – Mix a deviled food cake mix, eggs, melted butter, and water in a large bowl. Stir in a small bag of mini Reese peanut butter cups.

Step Two – Spray an oval slow cooker with non-stick spray and pour the batter into it.

Step Three – Cook on HIGH for 2 hours without opening the lid during the cooking time.

four images about how to make and add peanut butter frosting to cake.

Step Four – Add the peanut butter to a small pan set over medium heat on the stove top.

Step Five – Stir until melted and smooth and then add the powdered sugar, whisking until smooth.

Step Six – Pour the sweetened creamy peanut butter frosting over the warm cake. 

Step Seven – Top with halved bite-sized peanut butter cups. Serve and enjoy!

overhead shot of reese's peanut butter cake.

How to serve warm cake

  • Scoop the warm cake into serving bowls.
  • Top with ice cream or whip cream. You can also provide chopped peanut butter cups, chocolate chips (semi-sweet chocolate chips are great), and/or diced fruit for an extra topping choice.
  • Have a bottle of chocolate syrup ready for garnish if desired.
  • This is a great dessert to let your guests serve themselves; they can choose how much dessert and toppings they prefer.
scoop out of peanut butter chocolate cake.

Variations

  • Coffee – Use freshly brewed coffee in place of the water; it will have a slight hint of coffee and add depth of flavor to the cake.
  • White Cake Mix – Not a huge chocolate fan? Use a white cake mix instead of chocolate, and you will have wonderful vanilla and peanut butter dessert.
  • Reese’s Pieces – Use Reese’s pieces instead of cups for a fun twist! Or you can add a handful of both for some added texture.
bowl of peanut butter chocolate cake.

Recipe FAQs

Can I make this in the oven?

Yes! You can make Reese’s Peanut Butter Cake in the oven. Bake in a 9×13 pan, and bake as directed on the cake recipe mix box. It will still taste delicious!

What does the peanut butter glaze taste like?

The topping in this recipe tastes like the peanut butter topping at Baskin Robbins. It’s not overly sweet and goes great with chocolate and ice cream.

How do I store leftovers?

If desired, you can let the cake cool on the counter and place the entire slow cooker insert in the fridge. Flip the lid over to make it fit better in the refrigerator. Or spoon into airtight containers (this can be messy).

Can I freeze this Reese’s cake?

Freeze the leftover peanut butter cake in an airtight container for up three months. Thaw, warm, and enjoy!

How do I reheat this cake?

Warm single servings in the microwave for about 30 seconds.

More Slow Cooker Dessert Recipes:

  • Slow Cooker German Chocolate Spoon Cake
  • Slow Cooker Lemon Spoon Cake
  • Slow Cooker Fudge
  • Slow Cooker Cherry Chip Cake
  • Slow Cooker Pineapple Spoon Cake
  • Slow Cooker Pumpkin Spoon Cake
  • Slow Cooker Chocolate Lava Cake

Want to make more magic in your crockpot? Stay up to date and subscribe to my newsletter and follow along on Facebook, Instagram, Pinterest, Tik Tok, and YouTube.

spoon in chocolate peanut butter cake.

Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}

4.96 from 69 votes
Warm Chocolate Cake topped with melted peanut butter and chocolate peanut butter candy.
Print Pin Rate Share by Text
Course: Dessert
Cuisine: American
Prep Time: 15 minutes minutes
Cook Time: 2 hours hours
Total Time: 2 hours hours 15 minutes minutes
Servings: 10
Calories: 607kcal
Author: Sarah Olson

Equipment Needed:

  • Slow Cooker – 5-quart oval or larger

Ingredients:

  • 15.25 oz. devil’s food cake mix
  • 1 cup water
  • 1/2 cup salted butter melted
  • 3 large eggs
  • 8 oz. pkg. mini Reese’s peanut butter cups

For the topping

  • 1 cup creamy peanut butter
  • 3 Tbsp. powdered sugar
  • 10 bite size Reese’s peanut butter cups

Slow Cooker Size:

  • 6 quart oval
US Customary – Metric

Instructions:

  • In a large bowl mix together the cake mix, water, butter, and eggs until smooth. Some lumps are ok, that is normal. Stir in the mini peanut butter cups.
  • Spray the slow cooker with non stick spray. Add the batter to the slow cooker and spread out into an even layer.
  • Cover and cook on HIGH for 2 hours without opening the lid during the cooking time.
  • When the cooking time is done, remove the cake from the heat, to keep it from continuing to cook.
  • In a small pan set over medium heat on the stove top, add the peanut butter. Stir until melted and smooth, watch closely because it will burn quickly. Add the powdered sugar and whisk until smooth.
  • Pour the sweetened peanut butter over the warm cake. Top with halved Reese's peanut butter cups.
  • Serve and enjoy! Great with ice cream or whipped cream.
Prevent your screen from going dark

How to Video:

Sarah’s Notes:

  1. You can make Reese’s Peanut Butter Cake in the oven. Bake in a 9×13 pan, and bake as directed on the cake mix box.
  2. To store, let the cake cool on the counter and place the entire slow cooker insert in the fridge if desired. Flip the lid over to make it fit better in the fridge. Or spoon into airtight containers (this can be messy).
  3. Reheat by heating single servings in the microwave for about 30 seconds.
Variations
  • Coffee – Use freshly brewed coffee in place of the water, it will have a slight hint of coffee and add depth of flavor to the cake.
  • White Cake Mix – Not a huge chocolate fan? Use a White cake mix instead of chocolate and you will have a wonderful vanilla and peanut butter dessert.
  • Reese’s Pieces – Use Reese’s pieces instead of cups for a fun twist! Or you can add a handful of both for some added texture.

Nutrition Information:

Calories: 607kcal | Carbohydrates: 57g | Protein: 13g | Fat: 39g | Saturated Fat: 13g | Cholesterol: 75mg | Sodium: 682mg | Potassium: 430mg | Fiber: 3g | Sugar: 37g | Vitamin A: 370IU | Calcium: 109mg | Iron: 3mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

Made this recipe?I want to see your photos! Tag me on Instagram @themagicalslowcooker

FREE EMAIL SERIESSLOW COOKER SECRETS

Get Sarah's tricks to delicious and hands-free cooking!
    115628 shares
    • 28084

    Filed Under: Dessert, Most Popular Recipes

    Comments

    1. Joseph says

      August 15, 2023 at 7:40 pm

      5 stars
      I think I just heard my pancreas cry out in terror just from reading the recipe LOL! Might be awhile before I make this as I’m trying to lose weight and there’s absolutely no way in heck I’d be able to keep from going back for seconds or even thirds! 😛

      I think coconut cake mix would work well in this recipe too to provide an offsetting flavor that works with both chocolate and peanut butter 🙂

      Reply
    2. Jennifer G says

      June 15, 2023 at 5:34 pm

      5 stars
      This cake is amazing! I took it to a potluck and everybody wanted the recipe! So easy to make and delicious. I think I will make this again for Thanksgiving as another option to the traditional pies. Thanks for the great addition to my dessert choices! Delicious!

      Reply
    3. Anonymous says

      June 11, 2023 at 6:58 pm

      Don’t bake in the slow cooker it burned (followed the instructions). It was a waste of ingredients. Super disappointed with this recipe.

      Reply
    4. Wally says

      December 31, 2022 at 1:06 pm

      Can this be made using Gluten Free cake mix?

      Reply
      • Sarah Olson says

        December 31, 2022 at 2:09 pm

        I have not tested. You will have to use the liquid amounts that are on the box if they are different than the recipe.

        Reply
    « Older Comments

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    Photo of Sarah Olson holding a slow cooker

    Hello! I'm Sarah

    Welcome to The Magical Slow Cooker. Let me help you find recipes for your slow cooker that you'll enjoy!
    • Visit us on Pinterest
    • Visit us on Instagram
    • Visit us on Youtube
    • Visit us on Facebook
    • Visit us on Twitter

    Slow Cooker Christmas Recipes

    Nutella hot chocolate in a slow cooker and in a metal ladle.

    Slow Cooker Nutella Hot Chocolate

    sliced cooked yams in a rich sauce in the slow cooker.

    Slow Cooker Candied Yams

    cooked pork loin with cranberries in a white slow cooker.

    Slow Cooker Cranberry Pork Loin

    close up of pineapple casseroel on a spoon.

    Slow Cooker Pineapple Casserole

    chrismtas punch in a slow cooker with apples shaped as stars and cranberries.

    Warm Christmas Punch {Crockpot}

    cooked stuffing in a white slow cooker.

    Slow Cooker Stuffing

    Most Popular Recipes

    Cooked cube steak in a crockpot.

    Slow Cooker Cube Steak

    peanut butter cake with spoon in it.

    Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}

    Close up of cajun chicken fettuccine in slow cooker.

    Slow Cooker Cajun Chicken Fettuccine Alfredo

    close up of baked spaghetti in slow cooker

    Slow Cooker Baked Spaghetti {Million Dollar Spaghetti}

    close up of enchilada casserole

    Slow Cooker Chicken Enchilada Casserole

    close up photo of chicken, potatoes and green beans in slow cooker

    Seasoned Chicken, Potatoes and Green beans

    Featured on:

    Featured in BuzzFeed, The Kitchen, Popsugar, 12 Tomatoes, yummly, Today, and Country Living
    smaller magical slow cooker logo

    FREE EMAIL SERIESSLOW COOKER SECRETS

      Privacy Policy  Nutritional Disclosure

      The Magical Slow Cooker is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide means for sites to earn advertising fees by advertising and linking to Amazon.com
      Copyright ©2023, The Magical Slow Cooker. All Rights Reserved.
      Design by Pixel Me Designs